Lesson 3: Computers all around us

This activity revisits learning from Lesson 2: Input devices and output devices to help the children recall key knowledge.

Show the Presentation: Input and output devices recall. Point to a device (something made to help people do a job). Ask the children to show the hand action from the previous lesson for input (an action used to make something happen on a computer) if it is an input device. Ask them to show the hand action for output (something a computer shows or does after getting an input) if it is an output device.